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Evidence for global warming. (Read 83644 times)
Bobby.
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Re: Evidence for global warming.
Reply #615 - Oct 15th, 2020 at 11:31am
 
https://www.weatherzone.com.au/news/earths-warmest-september-on-record/532690


Image: Global combined land and ocean surface temperature anolaies for the last 141 Septembers, relative to the 20th century average. Source: NOAA National Centres for Environmental Information.

...



Earth's warmest September on record.


Ben Domensino, Thursday October 15, 2020 - 11:49 EDT

Our planet just had its warmest September on record, according to a new report released by the U.S. National Oceanic and Atmospheric Administration (NOAA).

Based on the NOAA 'global temperature dataset record', which dates back to 1880, Earth just registered its warmest September on record. Last month's global land and ocean surface temperature was 0.97ºC above the 20th-century average, making it the highest of the last 141 Septembers in this dataset. The previous record was 0.95ºC above average, which occurred in both 2015 and 2016.
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lee
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Re: Evidence for global warming.
Reply #616 - Oct 15th, 2020 at 1:24pm
 
"Increasing ocean stratification over the past half-century

    Guancheng Li, Lijing Cheng, Jiang Zhu, Kevin E. Trenberth, Michael E. Mann & John P. Abraham "

"Seawater generally forms stratified layers with lighter waters near the surface and denser waters at greater depth. This stable configuration acts as a barrier to water mixing that impacts the efficiency of vertical exchanges of heat, carbon, oxygen and other constituents. "

"We find that stratification globally has increased by a substantial 5.3% [5.0%, 5.8%] in recent decades (1960–2018) (the confidence interval is 5–95%); a rate of 0.90% per decade. Most of the increase (~71%) occurred in the upper 200 m of the ocean and resulted largely (>90%) from temperature changes, although salinity changes play an important role locally."

https://www.nature.com/articles/s41558-020-00918-2


Dated 28 September

So now Trenberth's heat hiding in the "deep ocean" is now not; it is mostly in the top 200m  The stratification prevents the mixing to the deep ocean.

But then -

"New research reveals temperatures in the deep sea fluctuate more than scientists previously thought and a warming trend is now detectable at the bottom of the ocean."

"In a new study in AGU’s journal Geophysical Research Letters, researchers analyzed a decade of hourly temperature recordings from moorings anchored at four depths in the Atlantic Ocean’s Argentine Basin off the coast of Uruguay. The depths represent a range around the average ocean depth of 3,682 meters (12,080 feet), with the shallowest at 1,360 meters (4,460 feet) and the deepest at 4,757 meters (15,600 feet).

They found all sites exhibited a warming trend of 0.02 to 0.04 degrees Celsius per decade between 2009 and 2019 – a significant warming trend in the deep sea where temperature fluctuations are typically measured in thousandths of a degree. According to the study authors, this increase is consistent with warming trends in the shallow ocean associated with anthropogenic climate change, but more research is needed to understand what is driving rising temperatures in the deep ocean."

https://news.agu.org/press-release/the-deep-sea-is-slowly-warming/

Dated 13 October

So in a fortnight it is not in the deep ocean, but it is. Roll Eyes

...

https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2020GL089093

And they know this is widespread from exactly four sites.

And of course those dratted global average ocean temperatures back to 1880 with an accuracy of .01C? Farcical, the same as the global average land temperatures going back that far. And of course even now. Supposedly accurate to within 1/100th of a degree C.

September Ranks and Records

September      Anomaly                                                  Rank
                                                                                 (out of 141 years)      Records
                    °C                        °F                                                           Year(s)       °C      °F
Global
Land      +1.49 ± 0.29      +2.68 ± 0.52      Warmest      1st       2020      +1.49      +2.68
                                                                                Coolest      141st      1884      -0.78      -1.40
Ocean      +0.77 ± 0.14      +1.39 ± 0.25      Warmest      4th               2015        +0.83      +1.49
                                                                                Coolest      138th       1903,
                                                                                                                          1904,
                                                                                                                          1908        -0.47        -0.85
Land and Ocean+0.97 ± 0.16      +1.75 ± 0.29 Warmest      1st                 2020        +0.97         +1.75
                                                                                Coolest      141st         1912        -0.53         -0.95

https://www.ncdc.noaa.gov/sotc/global/202009
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Bobby.
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Re: Evidence for global warming.
Reply #617 - Jan 12th, 2021 at 10:53pm
 
Here's some evidence to back up what Monk has been saying:


https://www.weatherzone.com.au/news/nearly-four-years-without-a-cool-month-in-nz...


Nearly four years without a 'cool' month in NZ


Ben Domensino, Tuesday January 12, 2021 - 17:13 EDT

Aotearoa New Zealand has now gone almost four years without registering a notably cooler-than-average month, with the country also just experiencing its 7th warmest year on record.

Unusually high atmospheric pressure near New Zealand during 2020 helped cause patterns of atmospheric circulation that suppressed rainfall over northern parts of the country.

According to New Zealand’s National Institute of Water and Atmospheric Research (NIWA), 2020 was the driest year on record for the North Island’s Auckland, Hamilton and Whatawhata. This is an impressive feat at Hamilton, which has rainfall data available back to 1905.

This abnormally dry weather was also frequently accompanied by above-average temperatures throughout the year.

Overall, 2020 was New Zealand’s 7th warmest year on record, with a mean national temperature that was 0.63ºC above the 1981-2010 average. This came in behind the record of 0.84ºC above average in 2016.

Image: New Zealand's annual national temperature anomalies. Source: NIWA

NIWA pointed out that last year’s top-ten temperature ranking is consistent with a long-term trend of rising temperatures in the country.

Six of the last eight years have all been among the country’s warmest on record. It’s also worth noting that six months during 2020 were more than half a degree warmer than the long-term average, while the remaining six months were all near-average.

According to NIWA, “it has now been 47 months since New Zealand has had a month with below average temperatures."

NIWA defines below-average temperatures as being less than -0.50°C of the long-term average. The country’s last below-average monthly temperature was observed in January 2017.
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Re: Evidence for global warming.
Reply #618 - Jan 13th, 2021 at 11:09am
 
Bump
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lee
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Re: Evidence for global warming.
Reply #619 - Jan 13th, 2021 at 12:28pm
 
Bobby. wrote on Jan 12th, 2021 at 10:53pm:
NIWA defines below-average temperatures as being less than -0.50°C of the long-term average.



How do they define above-average temperature?
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Bobby.
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Re: Evidence for global warming.
Reply #620 - Jan 13th, 2021 at 12:37pm
 
lee wrote on Jan 13th, 2021 at 12:28pm:
Bobby. wrote on Jan 12th, 2021 at 10:53pm:
NIWA defines below-average temperatures as being less than -0.50°C of the long-term average.



How do they define above-average temperature?



The National Institute of Water and Atmospheric Research or NIWA knows.
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Ayn Marx
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Re: Evidence for global warming.
Reply #621 - Jan 14th, 2021 at 10:12am
 
Bobby. wrote on Mar 17th, 2019 at 3:36pm:
random wrote on Mar 17th, 2019 at 3:33pm:
System Information

This topic is locked, and you are not allowed to post or modify messages.




That was the last thread - I locked it.
You can have your say here now.
Post your evidence.

Let’s start here :- https://link.newyorker.com/view/5d87c528283d8e22f8320025dhdur.qt/bead8aea
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The Human Race is Insane
 
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lee
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Re: Evidence for global warming.
Reply #622 - Jan 14th, 2021 at 4:17pm
 
Ayn Marx wrote on Jan 14th, 2021 at 10:12am:
Let’s start here :- https://link.newyorker.com/view/5d87c528283d8e22f8320025dhdur.qt/bead8aea


From your reference -

"For instance, in 1988—the year that the NASA scientist James Hansen made the greenhouse effect a public issue—Royal Dutch Shell produced a confidential internal memo after five years of internal reviews"

Hansen 2009 2011 -

"The basic physics underlying this global warming, the greenhouse gas effect, is simple. An increase in gases such as CO2 makes the atmosphere more opaque at infrared wavelengths. This added opacity causes the planet’s heat radiation to space to arise from higher, colder levels in the atmosphere, thus reducing emission of heat energy to space. "

https://arxiv.org/abs/1105.1140

...

Nope. No change in optical thickness.

...

Nope. No change in heat energy lost to space.

That therefore falsifies Hansen's view of AGW.

Perhaps you have another icon to which you can refer?
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« Last Edit: Jan 14th, 2021 at 4:24pm by lee »  
 
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Bobby.
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Re: Evidence for global warming.
Reply #623 - Jan 26th, 2021 at 3:02pm
 
I asked Monk for a very long time to start a thread called
Evidence for global warming.

He wouldn't do it so I had to to do it myself here.

It is now 42 pages long and has a lot of evidence that
agrees with Monk's point of view
which was mostly provided by me.

Monk still hasn't apologised for his lies about me.
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lee
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Re: Evidence for global warming.
Reply #624 - Jan 26th, 2021 at 3:19pm
 
I see he hasn't responded to his Topic of "Australia a Carbon Sink?"

I guess he has no comeback.
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Bobby.
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Re: Evidence for global warming.
Reply #625 - Feb 1st, 2021 at 5:30pm
 
Monk must apologise.


Just in now -
channel 7 news - Jane Bunn.


Melbourne had the  coolest January in 17 years.
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lee
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Reply #626 - Feb 1st, 2021 at 5:52pm
 
"Scientists have resolved a key climate change mystery, showing that the annual global temperature today is the warmest of the past 10,000 years – contrary to recent research, according to a Rutgers-led study in the journal Nature.

The long-standing mystery is called the “Holocene temperature conundrum,” with some skeptics contending that climate model predictions of future warming must be wrong. The scientists say their findings will challenge long-held views on the temperature history in the Holocene era, which began about 12,000 years ago.

“Our reconstruction shows that the first half of the Holocene was colder than in industrial times due to the cooling effects of remnant ice sheets from the previous glacial period – contrary to previous reconstructions of global temperatures,” said lead author Samantha Bova, a postdoctoral researcher associate in the lab of co-author Yair Rosenthal, a Distinguished Professor in the Department of Marine and Coastal Sciences and Department of Earth and Planetary Sciences at Rutgers University-New Brunswick. “The late Holocene warming was indeed caused by the increase in greenhouse gases, as predicted by climate models, and that eliminates any doubts about the key role of carbon dioxide in global warming.”

Scientists used marine calcareous (calcium carbonate-containing) fossils from foraminifers – single-celled organisms that live at the ocean surface – to reconstruct the temperature histories of the two most recent warm intervals on Earth. They are the Last Interglacial period from 128,000 to 115,000 years ago and the Holocene. To get the fossils, the scientists collected a core of bottom sediments near the mouth of the Sepik River off northern Papua New Guinea during the Rutgers-led Expedition 363 of the International Ocean Discovery Program. The core features rapidly accumulating sediments that allowed the scientists to recreate the temperature history of the western Pacific warm pool, which closely tracks changes in global temperatures.

How temperature evolved during the Last Interglacial and Holocene eras is controversial. Some data suggest that the average annual global temperature during modern times does not exceed the warmth in the Holocene’s early warm period, called the “Holocene thermal maximum,” which was followed by global cooling. Meanwhile, climate models strongly suggest that global temperatures have risen throughout the past 10,000 years.

“The apparent discrepancy between climate models and data has cast doubts among skeptics about the role of greenhouse gases in climate change during the Holocene and possibly in the future,” Rosenthal said. “We found that post-industrial warming has indeed accelerated the long and steady trend of warming throughout the past 10,000 years. Our study also underscores the importance of seasonal changes, specifically Northern Hemisphere summers, in driving many climate systems. Our method can, for the first time, use seasonal temperatures to come up with annual averages.” "

https://www.eurekalert.org/pub_releases/2021-01/ru-icc012221.php

We have achieved it. Nirvana. The Holocene Optimum did not now exist. Based on ONE data set.

Mann would be proud. Everyone else obviously didn't know what they were doing. /sarc

Edit: I see from the Nature article they use Kohler et al 2017 as their CO2 foundation. Kohler (source Data Fig 3). Kohler et al use CMIP6 in their reconstructions. CMIP 6 shows more warming than CMIP5.

What could possibly go wrong. Wink

And the LIA disappears as well.
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Re: Evidence for global warming.
Reply #627 - Feb 1st, 2021 at 7:33pm
 
"The oak capricorn beetles (Cerambyx) were found in a piece of wood that had been submerged in a peat bog. It was found by a farmer in East Anglia in the 1970s and donated to the Museum.

It was thought that this species never existed in the UK, so the pair remained a small mystery until now.

Tiny samples of both the beetles and wood were recently sent off for radiocarbon dating, which placed their age at 3,785 years old. So, rather than a species new to the UK, these beetles may once have been once endemic to the British Isles, but have since been extinct for thousands of years.

Max Barclay, Curator of Beetles at the Museum, says, 'These beetles are older than the Tudors, older than the Roman occupation of Britain, even older than the Roman Empire. These beetles were alive and chewing the inside of that piece of wood when the pharaohs were building the pyramids in Egypt. It is tremendously exciting.'

He believes oak capricorn beetles which exist today in southern and central Europe may have died out in Britain due to climate change."

https://www.nhm.ac.uk/discover/news/2021/january/perfectly-preserved-ancient-bee...

Damned inconvenient  those facts.

Like Ancient trees being uncovered by retreating glaciers aged about 6,000 years.

Hannibal crossing the mountains with elephants.
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Reply #628 - Jun 23rd, 2021 at 9:17pm
 
Jun 22, 2021,02:13pm EDT|506 views

Wild High Temperatures Worldwide Show
The Extent Of Record June Heat Wave


Eric Mack

https://www.forbes.com/sites/ericmack/2021/06/22/wild-high-temperatures-worldwid...



Palm Springs not only tied its all-time high temperature, it also recorded the warmest June night ever seen in North America this month. Meanwhile, Moscow is the hottest it’s been in June since 1901. In Siberia the ground surface temperature is a shocking 118 degrees Fahrenheit (47.8 degrees Celsius). That’s bad news for permafrost.

"This is because of global climate change,"
Russian meteorologist Marina Makarova told AFP.


All around the globe, June has been one for the record books. Monday was the hottest June day ever seen in Helsinki, Finland at 89 F (31.7 C).

The all-time record high for June for all of Mexico fell at Mexicali in Baja California this June 18 when the mercury reached a scorching 125 F (51.4 C). That’s just barely below the all-time high record ever seen anywhere in the country at any time of year.

Oh, and in case you haven’t spent much time paying attention to the weather in this planet’s northern hemisphere, keep in mind that June is typically not as hot as July and August.


The record heat hasn’t just been for blistering afternoons. While Palm Springs, Calif. tied its all-time high of 123 F (50.6 C), it also set a new record for the warmest overnight low for a June night anywhere in North America at an insomnia-inducing 105 F (40.6 C).

The heat wave isn’t only limited to the northern summer, either. Parts of South Africa saw overnight winter solstice temperatures in the 70s F (over 25 C).

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Bobby.
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Reply #629 - Aug 15th, 2021 at 2:55pm
 
Monk doesn't need to apologise:

https://www.noaa.gov/news/its-official-july-2021-was-earths-hottest-month-on-rec...



It’s official:
July was Earth’s hottest month on record



August 13, 2021





July 2021 has earned the unenviable distinction as the world’s hottest month ever recorded, according to new global data released today by NOAA’s National Centers for Environmental Information.


“In this case, first place is the worst place to be,” said NOAA Administrator Rick Spinrad, Ph.D. “July is typically the world’s warmest month of the year, but July 2021 outdid itself as the hottest July and month ever recorded. This new record adds to the disturbing and disruptive path that climate change has set for the globe.”

July 2021 by the numbers

    Around the globe: the combined land and ocean-surface temperature was 1.67 degrees F (0.93 of a degree C) above the 20th-century average of 60.4 degrees F (15.8 degrees C), making it the hottest July since records began 142 years ago. It was 0.02 of a degree F (0.01 of a degree C) higher than the previous record set in July 2016, which was then tied in 2019 and 2020.
    The Northern Hemisphere: the land-surface only temperature was the highest ever recorded for July, at an unprecedented 2.77 degrees F (1.54 degrees C) above average, surpassing the previous record set in 2012.
    Regional records: Asia had its hottest July on record, besting the previous record set in 2010; Europe had its second-hottest July on record—tying with July 2010 and trailing behind July 2018; and North America, South America, Africa and Oceania all had a top-10 warmest July.

Extreme heat and global climate change

With last month’s data, it remains very likely that 2021 will rank among the world’s 10-warmest years on record, according to NCEI’s Global Annual Temperature Rankings Outlook.

Extreme heat detailed in NOAA’s monthly NCEI reports is also a reflection of the long-term changes outlined in a major report released this week by the Intergovernmental Panel on Climate Change offsite link. 

“Scientists from across the globe delivered the most up-to-date assessment of the ways in which the climate is changing,” Spinrad said in a statement. “It is a sobering IPCC report that finds that human influence is, unequivocally, causing climate change, and it confirms the impacts are widespread and rapidly intensifying.”
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